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Quiz 66
Mdcat-past-papers Quiz
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1301. The source of magnetic field is:
An isolated magnetic pole
Static electric charge
Nonmagnetic substance
Current loop
1302. If 0.5 T field is applied over an area of 2 m² which lies at an angle of 60° with the field, then the resulting flux will be:
0.5 Tesla
0.25 Weber
0.5 Weber
0.25 Tesla
1303. The magnitude of magnetic force will be maximum on a current-carrying conductor in uniform magnetic field if conductor is placed:
Parallel to magnetic field
At 45° in magnetic field
Perpendicular to magnetic field
Anti-parallel in magnetic field
1304. The formula Φ = B•A represents:
Electric flux
Magnetic flux
Electric flux density
Gravitational flux
1305. Which of the following statement is incorrect for any magnetic field lines?
Lines start at north pole and ends at south pole
Lines never touch or cross each other
The lines are curved
Magnetic field is strongest when the lines are farthest
1306. The unit of magnetic flux density is:
Wb•m⁻²
Wb•m
Wb•m²
Wb
1307. The path of a neutron moving perpendicular to magnetic field is:
Curve
Straight line
Circle
Ellipse
1308. A charged particle of mass "m" and charge "q" is projected in a magnetic field of induction B at an angle θ. The radius of curvature of its curved path is given by:
r = mv/qB
r = qB/mv
r = mv/qBsinθ
r = mv/qBcosθ
1309. Which of the following defines the change in magnetic flux per unit area?
Magnetic field
Magnetic force
Magnetic dipole
Magnetic flux density
1310. What is the dot product of magnetic induction and unit area?
Magnetic flux
Magnetic induction
Magnetic field
Magnetic pole
1311. What does the magnetic flux measure in?
Area surrounded by a magnet
Strength of magnetic field
Rate of change of magnetic force
Number of magnetic lines of force
1312. When magnetic field and vector area are perpendicular then magnetic flux will be:
Zero
Maximum
Minimum
Optimum
1313. 1 eV is equal to:
1.602 × 10⁻¹⁹ J
16.02 × 10⁻¹⁹ J
1602 J
162.0 × 10⁻¹⁹ J
1314. The unit of magnetic flux is:
Weber (Wb)
Wbm
Wbm⁻¹
Wbm⁻²
1315. The dimension of magnetic field is same as that of:
Magnetic flux density
Magnetic flux
Magnetic force
Work done
1316. Magnetic flux is the dot product of:
Magnetic field and scalar area
Magnetic field & vector area
Magnetic field per unit scalar area
Magnetic field per unit vector area
1317. When current is coming out of the paper in a straight conductor, then direction of magnetic field is:
Clockwise
Anti-clockwise
Downward
Upward
1318. 1 Wb =
1 Nm/A
1 Nm²A⁻¹
1 Nm⁻¹A
1 NmA⁻¹
1319. According to Fleming's Right Hand Rule, when you stretch out the forefinger, middle finger and thumb so that they are at right angles to each other, the middle finger will point in the direction of:
Force
Magnetic field
Volt
Current
1320. Magnetic flux is maximum when the angle between the magnetic field and the normal to the plane of finite area is:
Zero degree
90 degrees
60 degrees
30 degrees
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